#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
uint num;
sbit key1=P3^7;
sbit d1=P1^0;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
void delay(uint z);
void main()
{
	while(1)
	{
		if(key1==0)
			{
				delay(10);
				if(key1==0)
					{	
						num++;
						if(num==10)
							num=0;
	//					d1=0;

					}
			while(!key1);
				delay(10);
			while(!key1);
				d1=0;
			delay(1000);
			d1=1;
		
		}
			else
			{
				P2=0xfe;
				P0=table[num];	
			}
	}
}
void delay(uint z)
{
	uint x,y;
	for(x=z;x>0;x--)
		for(y=110;y>0;y--);
}

